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Finding the Fourth Proportional to 451,630.10, 623,277.09 and 260,655.77

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Solution

The fourth proportional to 451,630.10, 623,277.09 and 260,655.77 is: 359,720.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,630.10 : 623,277.09 = 260,655.77 : x
  2. Step 2: Convert to fraction form
    451,630.10/623,277.09 = 260,655.77/x
  3. Step 3: Cross multiply
    451,630.10x = 623,277.09 × 260,655.77
  4. Step 4: Simplify right side
    451,630.10x = 162,460,766,700.92
  5. Step 5: Solve for x
    x = 162,460,766,700.92/451,630.10
  6. Step 6: Final answer
    x = 359,720.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.